Oil-burner.



' H. H. BUGKMAN, JE-

OIL BURNER.

APPLICATION FILED JUNE 24, 1912.

Patented June 3, 1913.

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[jVVE/VTOR, HENRY H.3BUCKMHN .JR.

s m m w W ATTORNEY.

HENRY H. BUCKMAN, JR., OF INDIANAPOLISQINDIANA, ASSIGNOR,'BY DIRECT AND MESNE ASSIGNMENTS, '10 COLUMBIA INDIANA, A CORPORATION.

HEATING COMPANY, OF INDIANAPOLIS,

OIL-BURNER.

Specification of Letters Patent.

Patented June 3, 1913.

Application filed June 24, 1912. Serial No. 705,507.

To all whom it may concern:

Be itknown that I, Hnxnr H. Buoxarxx, Jr., a citizen of the United States. and a resident of Indianapolis, county of Marion, and Stateof Indiana, have invented a certain useful OiLBurner; and I do hereby declare that the following is a full. clear, 1

and exact description thereof, reference be ing had to the accompanying drawings.

The object of this invention is to provide an improved construction of devices for burning various oils, particularly the grade of mineral oils known as fuel and crude oils.

To this end. the burner is so constructed that the oil entering the lower part thereof is blown by an air blast against the hot surface of the wall of the burner, producing a mixture of oil, gas and air which does not burn in the burner, but rises through a series of holes in the burner top and ignites at the upper surface of the burner top and produces a bluish white and cuiiet flamev One purpose of the invention 1s to produce a burner of the kind capable of serving as a heater for houses as well as for other purposes, which does not roar or make any noise as is common with oil burners.

The nature of the invention will be understood from the accompanying drawings and the following description and claims.

In the drawings, Figure 1 is a central vertical section through the burner. Fig. 2 is a' perspective view of the burner. Fig. 8 is a cross section of the lower part on the line of Fig. 1. v

The burner top 10 is a disk-like body made of clay or other incombustible material. It has preferably a convex upper surface and a conical lower surface and is -provided with a considerable number of straight vertical passages 11 through the same for the passage of the mixture.

The burner top rests upon the upper an nular rim of a mixing chamber 12 made of cast iron or the like which tapers downwardly and is spaced from the lower or under surface of the burner top to allow for the mixture of gases and air, and has a central lower bottom extension 13 into which the oil is introduced from 'a supply pipe 14 and air under pressure through a supply pipe 15. A drain pipe 16 leads from the lower end of the extension 13. The oil supply pipe 14 communicates with a downwardly turned nozzle 17 which extends through a boss 18 so that the oil will M discharged from the nozzle 17 downwardly and inunetliately in front of the air inlet.

In operation oil is turned into the lower part of the device and is lighted and allowed to burn until the walls of the mixing cham her, particularly the lower extension 13 with the boss 18, are hot, and then the air blast is turned on and the oil is blown against the hot walls of the lower part of the burner, whereby the mixture of oil, air and gas is produced This mixture does not burn in the interior of the burner or mixing chamber, but rises in a form of gas through the mixing chamber and through all of the passageways in the burner top and ignites at the top of the burner where it issues from the passageways 11 in a bluish white flame. The admixture of air and gas has thus been so thoroughly accomplished and the .same

super-heated that combustion takes place without any noise or roar. The mixture is thoroughly distributed through all of the passageways 11 to the burner top by reason ofjthe mixing chamber and the conical bottom surface of the burner top which tends to deflect the current of the mixture from the center to the periphery thereof.

The construction of the burner top, particularly the long and small passageways 11, together with the general form of the mix ing chamber. prevent combustion of the gas mixture within the mixing chamber or before it reaches the upper surface of the burner top where it comes in contact with the air.

' I claim as my invention:-

1. An oil burner including a mixing chamber. means for supplying mixture centrally thereto. a burner top on said mixing chamber with its upper surface convex and its lower surface tapering downwardly, and passages extending upwardly through said burner top.

2. An oil burner including a mixing chamber, a burner top thereon with passageways extendingupwardly therethrough, a tubular downward extension from said mixing chamber, an air supply pipe entering said extension, and an oil supply nozzle in said extension and discharging vertically in front of the air supply pipe.

3. An oil burner including a mixing chamher, a burner top mounted thereon, a central tubular extension from said mixing chamber havlng a vertical boss in one s1de, a downwardly discharging nozzle passageway in with said nozzle, an air blast pipe discl'iarging into said extension transversely of the nozzle discharge, a burner top on the upper end of said mixing chamber, the underside of which is conical and extends down- *ard and is spaced from the wall of the mixing chamber, and passageways extending upwardly through said hurner top.

In witness whereof, I have hereunto affixed my signature in the presence of the witnesses herein named.

HENRY H. BUGKMAN, lhi:

Vitnesses:

J. H. \VnLLs, O. M. MCLAUuJ 11,1 x. 

